Evaporative pattern separation pouring system

Abstract

The utility model discloses an evanescent mode separation pouring system which comprises a pouring box which is of a hollow through rectangular box body structure and provides a storage space for dry sand of an evanescent mode. The supporting frame is installed at the bottom end of the pouring box, and the supporting frame supports the pouring box structure; the pressing cover is mounted in an opening in the upper end of the pouring box and is sealed inside, and the pressing cover is used for pressing dry sand inside the pouring box; a strip-shaped sliding rail is arranged at the bottom end of the supporting frame. According to the lost foam separating and pouring system, the injection bins arranged on the two sides of the pouring box are combined with the injection bin arranged at the bottom end of the supporting frame to be matched with the injection bin of the pressing cover to form a multi-angle pouring structure in different directions. Air holes appearing in the working treatment process of the position of a single sprue gate are reduced, a pouring system of the evanescent mode can be conveniently adjusted and controlled according to the size and position requirements of different evanescent modes, and therefore the pouring quality of the evanescent mode is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting, in particular to a lost foam separation casting system. Background Art

[0002] The characteristics of the lost foam casting process are the use of dry sand molding, the use of vacuum negative pressure to maintain the tightness of the mold, so that the cavity has the compressive strength to resist the hot pressure of the molten metal. Whether it is traditional sand casting or lost foam casting, the pouring system is one of the important factors affecting the quality of the casting. In order to obtain sound castings, it is necessary to separate the pouring process according to the structure of the casting and improve the processing method of the casting.

[0003] Due to the structural position setting of the existing single casting system, air holes are generated in the casting during the casting process, resulting in defects such as shrinkage holes and cold shuts in the castings, which makes the original lost foam casting system more difficult to use. In the process of filling the lost foam and dry sand into the sand box, the existing sand box structure does not have a corresponding smoothing device, resulting in gaps between the filled dry sand, affecting the casting process of the lost foam. Utility Model Content

[0004] The purpose of the utility model is to provide a lost foam separation casting system to solve the problem that the structural position setting of the existing single casting system proposed in the above background technology is easy to cause defects such as shrinkage holes and cold shuts in the casting parts, and because the existing sand box structure does not have a corresponding smoothing device, gaps are left between the filled dry sand, affecting the casting process of the lost foam.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lost foam separation casting system, comprising a casting box, which is arranged as a hollow through-hole rectangular box structure, and the casting box provides storage space for the lost foam dry sand;

[0006] A support frame is installed at the bottom of the pouring box, and the support frame supports the pouring box structure;

[0007] A pressing cover is installed inside the upper opening of the casting box to seal the inside of the casting box, and the pressing cover presses the dry sand inside the casting box;

[0008] A strip slide rail is provided at the bottom end of the support frame, and a slide plate is slidably connected inside the slide rail of the support frame, an auxiliary plate 1 is snap-connected to one side of the support frame, and an auxiliary plate 2 is snap-connected to the other side of the support frame, a telescopic column is installed inside the auxiliary plate 1, and an output end of the telescopic column is connected to the surface of the casting box;

[0009] The lifting column is symmetrically mounted on both sides of the upper end of the support frame. The lifting column is a rod structure with two-stage sliding connection, and an auxiliary frame is slidably connected between the two lifting columns arranged on the same side surface of the support frame. The output end of the auxiliary frame is installed with the injection bin, and the injection bin is provided with

[0010] The telescopic component is used to offset different surfaces of the lost foam entering the casting box, and separate casting operations are achieved through injection bins in different directions.

[0011] The above technical solution is adopted to facilitate the separate casting of the lost foam in different directions, so as to keep the inside of the casting smooth and reduce bubbles.

[0012] Preferably, an injection bin is provided on each side of the pouring box, and the injection bin is a circular tubular pipeline structure.

[0013] By adopting the above technical solution, liquid metal is injected into the pouring box through the injection bin.

[0014] Preferably, one end of a spring column penetrates the interior of the second auxiliary plate, and the other end of the spring column is mounted on the surface of the pouring box, and the spring column consists of a cylinder and a spring.

[0015] By adopting the above technical solution, the spring column is used to assist the casting box to achieve reciprocating vibration to maintain the compactness between the dry sand.

[0016] Preferably, an injection bin is provided inside the pressing cover, and the pressing cover and the support frame are symmetrically arranged, an injection bin is provided at the bottom end of the support frame, and the injection bin of the support frame and the injection bin of the pressing cover are symmetrically arranged.

[0017] By adopting the above technical solution, by adding injection bins in different directions, it is convenient to provide separate casting for the disappearing film.

[0018] Preferably, the telescopic assembly comprises:

[0019] A position-limiting sealing cavity tube is arranged inside the injection bin, and the position-limiting sealing cavity tube is in the shape of concentric circles to divide the internal space of the injection bin;

[0020] A lifting pouring port is located inside the injection bin and is slidably connected, and the bottom end of the lifting pouring port is slidably connected to the limiting sealing cavity tube and the inner wall of the injection bin;

[0021] An electromagnetic spring is installed inside the injection chamber and at the port of the limit sealing cavity tube;

[0022] The high temperature resistant sealing ring is sleeved on the outer wall surface of the injection bin, and the high temperature resistant sealing ring is butted against the inner wall surface of the pouring box.

[0023] By adopting the above technical solution, the telescopic component facilitates the lifting and lowering pouring port inside the injection bin to adjust the pouring height position.

[0024] Preferably, the lifting pouring gate is a cylindrical structure, and the lifting pouring gate passes through one side of the injection bin and is located on the inner wall surface of the pouring box.

[0025] By adopting the above technical solution, the lost foam is cast by cooperating with the lifting pouring port and the injection bin.

[0026] Preferably, the electromagnetic spring is composed of an energized spring wire, an iron core and an energized port, and the energized spring wire of the electromagnetic spring is arranged around the outer wall of the limiting sealing cavity tube, and a sealing member is arranged between the limiting sealing cavity tube and the lifting pouring port.

[0027] By adopting the above technical solution, electricity is injected into the energized spring wire in the electromagnetic spring, so that the magnetic force generated by the energized spring wire is opposite to the magnetic force generated by the energization of the iron core, thereby pushing and lifting the pouring port.

[0028] Compared with the prior art, the utility model has the following beneficial effects: the lost foam separation pouring system:

[0029] 1. When in use, the injection bins arranged on both sides of the pouring box cooperate with the injection bins arranged at the bottom of the support frame and the injection bins of the pressing cover to form a pouring structure in different directions and at multiple angles. Through the separate pouring of the lost foam at multiple angles, the air holes appearing in the working process of a single pouring port position are reduced, and the pouring system of the lost foam is convenient to adjust according to the size and position of different lost foams, thereby improving the casting quality of the lost foam;

[0030] 2. The lifting columns arranged on both sides of the upper end of the support frame limit the position of the pressing cover. The two-stage structure of the lifting columns is driven by electricity to perform lifting activities, so that the lifting columns can drive the pressing cover to rise and fall continuously, and provide compression operation for the dry sand and lost foam placed in the casting box. As the pressing cover continuously squeezes the dry sand inside the casting box, it maintains a tight connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall internal three-dimensional structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure of the pouring box and the slide plate of the utility model;

[0033] Figure 3 This is a schematic diagram of the overall internal three-dimensional structure of the utility model;

[0034] Figure 4 This is a schematic diagram of the overall internal side section stereoscopic structure of the utility model;

[0035] Figure 5 This is a schematic diagram of the three-dimensional structure of the injection bin and the lifting pouring port of the utility model;

[0036] Figure 6 It is a schematic diagram of the side section stereoscopic structure of the injection bin and the lifting pouring port installation of the utility model.

[0037] In the figure: 1. pouring box; 2. supporting frame; 3. sliding plate; 4. auxiliary plate 1; 5. telescopic column; 6. auxiliary plate 2; 7. spring column; 8. pressing cover; 9. lifting column; 10. auxiliary frame; 11. injection bin; 12. limiting sealing cavity tube; 13. lifting pouring port; 14. electromagnetic spring; 15. high temperature resistant sealing ring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1-6 The utility model provides a technical solution: a lost foam separation pouring system, including a pouring box 1, a support frame 2, a slide plate 3, an auxiliary plate 1 4, a telescopic column 5, an auxiliary plate 2 6, a spring column 7, a pressing cover 8, a lifting column 9, an auxiliary frame 10, an injection bin 11, a limit sealing cavity tube 12, a lifting pouring port 13, an electromagnetic spring 14 and a high temperature resistant sealing ring 15;

[0040] The pouring box 1 is a hollow rectangular box structure, which provides storage space for the lost foam dry sand. An injection bin 11 is provided on both sides of the pouring box 1, and the injection bin 11 is a circular tubular pipe structure.

[0041] A support frame 2 is installed at the bottom of the pouring box 1, and the support frame 2 supports the pouring box 1 structure;

[0042] A pressing cover 8 is installed in the upper opening of the pouring box 1 and is sealed. The pressing cover 8 is used to press the dry sand inside the pouring box 1. An injection bin 11 is arranged inside the pressing cover 8, and the pressing cover 8 is symmetrically arranged with the support frame 2. An injection bin 11 is arranged at the bottom of the support frame 2, and the injection bin 11 of the support frame 2 is symmetrically arranged with the injection bin 11 of the pressing cover 8;

[0043] A strip slide rail is provided at the bottom end of the support frame 2, and a slide plate 3 is slidably connected inside the slide rail of the support frame 2, an auxiliary plate 1 4 is snap-connected to one side of the support frame 2, and an auxiliary plate 2 6 is snap-connected to the other side of the support frame 2, a telescopic column 5 is installed inside the auxiliary plate 1 4, and the output end of the telescopic column 5 is connected to the surface of the pouring box 1, one end of the spring column 7 penetrates inside the auxiliary plate 2 6, and the other end of the spring column 7 is installed on the surface of the pouring box 1, and the spring column 7 is composed of a cylinder and a spring;

[0044] The lifting column 9 is symmetrically installed on both sides of the upper end of the support frame 2. The lifting column 9 is a rod structure with two-stage sliding connection, and an auxiliary frame 10 is slidably connected between the two lifting columns 9 arranged on the same side surface of the support frame 2. The output end of the auxiliary frame 10 is installed with the injection bin 11. The injection bin 11 is provided with a telescopic component to offset different surfaces of the lost foam entering the casting box 1, and separate casting operations are realized through the injection bins 11 in different directions;

[0045] In conjunction with the accompanying drawings Figure 1-6 As shown, when in use, the pouring box 1 and the support frame 2 are arranged in a vertical direction, so that the pouring box 1 and the support frame 2 form a U-shaped structure to provide storage space for the dry sand and the lost foam position, and the auxiliary plate 1 4 and the auxiliary plate 2 6 arranged on both sides of the support frame 2 are symmetrically arranged, wherein the support frame 2 is arranged as a U-shaped frame structure with a lower opening, and the telescopic column 5 arranged inside the auxiliary plate 1 4 is a rod structure with a two-stage sliding connection, wherein the output end of the telescopic column 5 is connected to the surface of the pouring box 1, and as the telescopic column 5 is driven by electricity, the dry sand entering the pouring box 1 is vibrated to keep the dry sand tightly connected, and the spring column 7 arranged at the other end of the pouring box 1, as shown Figure 1-4 As shown, since the spring column 7 is composed of a spring and a column, wherein the spring of the spring column 7 is connected to the auxiliary plate 2 6, after the pouring box 1 is pushed by the telescopic column 5, the pouring box 1 is close to one side of the auxiliary plate 2 6, and at the same time, the auxiliary plate 2 6 is penetrated by the column of the spring column 7, and the elastic force of the spring located between the auxiliary plate 2 6 and the pouring box 1 facilitates the pushing of the pouring box 1 to the auxiliary plate 1 4 position, so that the pouring box 1 is located at the upper end of the support frame 2 and reciprocates, wherein the slide rail arranged at the upper end of the support frame 2 facilitates the pouring box 1 to wrap the internal dry sand tightly on the surface of the lost foam, and the slide plate 3 arranged inside the support frame 2 is limited by the injection bin 11 arranged inside, as shown in FIG. Figure 2 As shown, in order to prevent the dry sand inside the pouring box 1 from leaking out, the injection bins 11 arranged on both sides of the pouring box 1 are connected to the auxiliary frame 10, as shown in FIG. Figure 1-6 As shown, through the slide rail structure of the bottom end of the auxiliary frame 10 and the support frame 2, the auxiliary frame 10 cooperates with the injection bins 11 located on both sides of the pouring box 1 to reciprocate, reducing the gap between the dry sand inside the pouring box 1, making it easier for the device to maintain a stable limit installation of the internal lost foam;

[0046] The telescopic components include:

[0047] The position-limiting sealing cavity tube 12 is arranged inside the injection bin 11, and the position-limiting sealing cavity tube 12 is concentrically divided into the inner space of the injection bin 11;

[0048] The lifting pouring port 13 is located inside the injection bin 11 and is slidably connected, and the bottom end of the lifting pouring port 13 is slidably connected to the limiting sealing cavity tube 12 and the inner wall surface of the injection bin 11. The lifting pouring port 13 is a cylindrical structure, and the lifting pouring port 13 passes through one side of the injection bin 11 and is located on the inner wall surface of the pouring box 1;

[0049] The electromagnetic spring 14 is installed inside the injection bin 11 and at the port of the position-limiting sealing cavity tube 12. The electromagnetic spring 14 is composed of an energized spring wire, an iron core, and an energized port. The energized spring wire of the electromagnetic spring 14 is arranged around the outer wall of the position-limiting sealing cavity tube 12, and a seal is arranged between the position-limiting sealing cavity tube 12 and the lifting pouring port 13.

[0050] The high temperature resistant sealing ring 15 is sleeved on the outer wall surface of the injection bin 11 , and the high temperature resistant sealing ring 15 is butted against the inner wall surface of the pouring box 1 .

[0051] In conjunction with the accompanying drawings Figure 1-6 As shown, each pouring box 1 connected to the injection bin 11 is installed in conjunction with a high temperature resistant sealing ring 15, which is kept flush with the inner wall of the pouring box 1 through the high temperature resistant sealing ring 15, and the limiting sealing cavity tube 12 arranged inside the injection bin 11 is arranged in a concentric circle, as shown in FIG. Figure 3-6 As shown, the outer wall of the limiting sealing cavity tube 12 is slidably connected with the inner wall of the lifting pouring port 13, wherein the bottom end of the lifting pouring port 13 is set with the energized spring line of the electromagnetic spring 14, as shown in FIG. Figure 6 As shown, when in use, the power-on port of the electromagnetic spring 14 is connected by electricity, so that the power-on spring wire of the electromagnetic spring 14 and the iron core are energized to generate magnetic force, and the magnetic repulsion between the power-on spring wire of the electromagnetic spring 14 and the iron core is separated, thereby pushing the lifting pouring port 13 close to the surface of the lost foam. As the lifting pouring port 13 in different directions is injected with metal liquid for pouring treatment, separate pouring treatment in different directions is provided for the structure inside the lost foam, which is convenient for reducing the bubbles and gaps produced inside the casting, and improving the quality of the casting.

[0052] Working principle: When using the lost foam separation pouring system, the pouring box 1 is docked with the support frame 2. As the dry sand is placed inside the pouring box 1, the electric-driven telescopic column 5 pushes the pouring box 1 to slide above the support frame 2. The spring column 7 arranged on the other side of the pouring box 1 cooperates with the auxiliary plate 2 6, so that the spring column 7 maintains a uniform and dense state for the vibration of the position of the dry sand inside the pouring box 1 through the rebound effect of the spring. The injection bins 11 and the auxiliary frames 10 arranged on both sides of the pouring box 1 slide synchronously with the slide rails on the surface of the support frame 2. As the lost foam and dry sand fully enter the pouring box 1, the pressing cover 8 is pressed down by the lifting column 9 and enters the inside of the pouring box 1 to keep the dry sand tightly The electromagnetic spring 14 of the corresponding injection bin 11 is connected with the power supply, so that the energized spring wire of the electromagnetic spring 14 has the magnetic force to lift and push the lifting pouring port 13 to counter the surface of the lost foam, wherein the injection bin 11 and the corresponding casting molten metal are injected into the lost foam position inside the casting box 1, and a pipe for discharging the negative pressure device is opened on the surface of the pressing cover 8 corresponding to the drilling hole. As the liquid metal is poured, the melted white film is discharged along with the gas extracted by the negative pressure device, and the molten metal is poured into the lost foam position in different directions through the injection bin 11 and the lifting pouring port 13 in different directions, which is convenient for improving the internal compactness of the casting, so that the lost foam can realize the separate pouring operation, thereby increasing the overall practicality.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lost foam separation casting system, comprising: The pouring box (1) is configured as a hollow rectangular box structure, and the pouring box (1) provides storage space for the dry sand of the lost foam; A support frame (2) is installed at the bottom end of the pouring box (1), and the support frame (2) supports the pouring box (1) structure; A pressing cover (8) is installed inside the upper opening of the casting box (1) to seal the inside of the casting box (1), and the pressing cover (8) presses the dry sand inside the casting box (1); The invention is characterized in that: a strip slide rail is arranged at the bottom end of the support frame (2), and a slide plate (3) is slidably connected inside the slide rail of the support frame (2), an auxiliary plate 1 (4) is snap-connected to one side of the support frame (2), and an auxiliary plate 2 (6) is snap-connected to the other side of the support frame (2), a telescopic column (5) is installed inside the auxiliary plate 1 (4), and the output end of the telescopic column (5) is connected to the surface of the pouring box (1); The lifting column (9) is symmetrically mounted on both sides of the upper end of the support frame (2). The lifting column (9) is a rod structure with two sections of sliding connection, and an auxiliary frame (10) is slidably connected between two lifting columns (9) arranged on the same side surface of the support frame (2). The output end of the auxiliary frame (10) is installed with the injection bin (11), and the injection bin (11) is provided with The telescopic component is used to abut different surfaces of the lost foam entering the casting box (1), and separate casting operations are realized through injection bins (11) in different directions.

2. The lost foam separation pouring system according to claim 1, characterized in that: An injection bin (11) is provided on each side of the pouring box (1), and the injection bin (11) is a circular tubular pipeline structure.

3. The lost foam separation pouring system according to claim 1, characterized in that: One end of a spring column (7) penetrates the interior of the second auxiliary plate (6), and the other end of the spring column (7) is mounted on the surface of the pouring box (1). The spring column (7) is composed of a cylinder and a spring.

4. The lost foam separation pouring system according to claim 1, characterized in that: An injection bin (11) is arranged inside the pressing cover (8), and the pressing cover (8) and the support frame (2) are arranged symmetrically; an injection bin (11) is arranged at the bottom end of the support frame (2), and the injection bin (11) of the support frame (2) and the injection bin (11) of the pressing cover (8) are arranged symmetrically.

5. The lost foam separation pouring system according to claim 1, characterized in that: The telescopic assembly comprises: A position-limiting sealing cavity (12) is arranged inside the injection bin (11), and the position-limiting sealing cavity (12) is in the shape of concentric circles to divide the internal space of the injection bin (11); A lifting pouring port (13) is located inside the injection bin (11) and is slidably connected thereto, and the bottom end of the lifting pouring port (13) is slidably connected to the limiting sealing cavity tube (12) and the inner wall surface of the injection bin (11); An electromagnetic spring (14) installed inside the injection chamber (11) and at the port of the limiting sealing cavity tube (12); A high temperature resistant sealing ring (15) is sleeved on the outer wall surface of the injection bin (11), and the high temperature resistant sealing ring (15) is butt-connected with the inner wall surface of the pouring box (1).

6. The lost foam separation pouring system according to claim 5, characterized in that: The lifting pouring port (13) is a cylindrical structure, and the lifting pouring port (13) penetrates one side of the injection bin (11) and is located on the inner wall surface of the pouring box (1).

7. The lost foam separation pouring system according to claim 5, characterized in that: The electromagnetic spring (14) is composed of an energized spring wire, an iron core, and an energized port, and the energized spring wire of the electromagnetic spring (14) is arranged around the outer wall surface of the limiting sealing cavity tube (12), and a sealing member is arranged between the limiting sealing cavity tube (12) and the lifting pouring port (13).

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